National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fog/Mist

59°F

15°C

Humidity 100%
Wind Speed E 6 mph
Barometer 29.97 in (1015.4 mb)
Dewpoint 59°F (15°C)
Visibility 3.00 mi
Last update 14 Jun 4:56 am CDT
Extended Forecast for

Avon SD

Dense Fog Advisory until June 14, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until June 14, 09:00am

    NOW until 9:00am Sat

    Dense Fog Advisory

  • Overnight

    Low: 57 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 88. East wind 5 to 10 mph becoming south southeast in the afternoon.

    High: 88 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly between 10pm and midnight. Mostly cloudy, with a low around 66. South southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 87. South southeast wind 5 to 10 mph.

    High: 87 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 7pm. Partly cloudy, with a low around 66. South southeast wind 5 to 10 mph.

    Low: 66 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57. Northeast wind around 5 mph.
Saturday
A 10 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 88. East wind 5 to 10 mph becoming south southeast in the afternoon.
Saturday Night
Showers and thunderstorms likely, mainly between 10pm and midnight. Mostly cloudy, with a low around 66. South southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 87. South southeast wind 5 to 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 7pm. Partly cloudy, with a low around 66. South southeast wind 5 to 10 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 59.
Juneteenth
Sunny, with a high near 84.
Thursday Night
A 30 percent chance of showers. Mostly clear, with a low around 65.
Friday
Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Avon SD
 43°N 98.05°W (Elev. 1647 ft)
Last Update:
4:46 am CDT Jun 14, 2025
Forecast Valid:
5am CDT Jun 14, 2025-6pm CDT Jun 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation